Almost since the first silicon MOSFET was invented, engineers have sought to construct versions using gallium arsenide or other III-V semiconductors, which would be able to operate at considerably higher speeds.
The main roadblock has been in finding a suitable material to use as a gate insulator. But in recent years, considerable progress has been made.
One technique uses molecular-beam epitaxy to deposit a gallium oxide-gadolinium oxide insulator on a III-V substrate. Another successful method is to deposit an aluminum oxide gate insulator using atomic-layer deposition, which is less technically demanding than molecular-beam epitaxy.
These and other approaches are bringing the day closer when engineers will be able to integrate millions of III-V MOSFETs into microprocessors or other digital ICs. By combining these transistors (which use electrons as charge carriers) with others made of germanium (which use "holes" as charge carriers), chip manufacturers should be able to build CMOS ICs that operate several times faster than those built from silicon.
David Schneider | Newswise Science News
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Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
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21.10.2016 | Materials Sciences